I have an Alesis HD24. I also have a Presonus Digimax LT, which is an 8 channel preamp with optical lightpipe ADAT i/o (as well as analog i/o). I'd like to be able to record 8 tracks into the HD24 via lightpipe, then simultaneously use the other channels as analog inputs for my old-school analog preamps. Is there a way to do this? Or do I have to choose one or the other input type?